Members

International Sumo Federation has 87 established National sumo Federations.

Organization

International Sumo Federation encourages the sport's development worldwide, including holding international championships. A key aim of the federation is to have Sumo recognized as an Olympic sport. Accordingly, amateur tournaments are divided into weight classes (men: Lightweight up to 85kg (187lb), Middleweight up to 115kg (254lb), Heavyweight over 115kg (254lb), and Open Weight [unrestricted entry]), and include competitions for female wrestlers (Lightweight up to 65kg (143lb), Middleweight up to 80kg (180lb), Heavyweight over 80kg (180lb), and Open Weight).